Retevis H-777 Two Way Radios Long Range UHF 400-470MHz 16CH CTCSS/DCS Walkie Talkies with USB Charger (3 Pack) USB charging and direct wall charging gives you more charging options improving the charging efficiency Simple design and there are 2 knobs to control number of channels and switch Large capacity battery allow you can charge 2-3 hours then use it for 8-9 hours continuous use Original earpiece provid true hands-free communication;low voltage alert will remind you very well to saving battery life We provide 1 year radio body warranty and 30 days no reason to return including the accessories